18591678

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:326

約数の個数: 72

約数和(自身を含む): 47536632

約数和(自身を除く): 28944954

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 107, 126, 147, 197, 214, 294, 321, 394, 441, 591, 642, 749, 882, 963, 1182, 1379, 1498, 1773, 1926, 2247, 2758, 3546, 4137, 4494, 5243, 6741, 8274, 9653, 10486, 12411, 13482, 15729, 19306, 21079, 24822, 28959, 31458, 42158, 47187, 57918, 63237, 86877, 94374, 126474, 147553, 173754, 189711, 295106, 379422, 442659, 885318, 1032871, 1327977, 2065742, 2655954, 3098613, 6197226, 9295839, 18591678]

約数ペア:

[(1, 18591678), (2, 9295839), (3, 6197226), (6, 3098613), (7, 2655954), (9, 2065742), (14, 1327977), (18, 1032871), (21, 885318), (42, 442659), (49, 379422), (63, 295106), (98, 189711), (107, 173754), (126, 147553), (147, 126474), (197, 94374), (214, 86877), (294, 63237), (321, 57918), (394, 47187), (441, 42158), (591, 31458), (642, 28959), (749, 24822), (882, 21079), (963, 19306), (1182, 15729), (1379, 13482), (1498, 12411), (1773, 10486), (1926, 9653), (2247, 8274), (2758, 6741), (3546, 5243), (4137, 4494)]